Welcome.
Basics.
Object Modifications.
Obstacles.
- Screening and Reflection.
- Projection.
  - Calculating Projection at Line Sources.
  - Examining the Calculations.
- Lateral Diffraction.
- Absorption.
Industry.
Roads.
Railways.
DTM.
Project Management.
Extended Analysis.
Import and Export.
The Plot Designer.
Noise Mapping.
Distributed Calculation.

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Noise Mapping

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You are here: Obstacles > Projection

Projection

For objects screening the noise from line- or area sources, CadnaA uses a technique called "projection". The effects of the technique are discussed in this tutorial section.

Work through the chapter Basics before learning about projection. The section Screening and Reflection from the current chapter is also a good foundation.

Direct Links to the Videos

Calculating Projection at Line Sources